diff --git a/bls12-377-fr/Cargo.toml b/bls12-377-fr/Cargo.toml
index 4dc24daf6..0abbbea1c 100644
--- a/bls12-377-fr/Cargo.toml
+++ b/bls12-377-fr/Cargo.toml
@@ -15,7 +15,7 @@ serde = { workspace = true, features = ["derive"] }
 lazy_static = { version = "1.5.0" }
 
 # Feild
-crrl = {path = "../../crrl", features = ["modint256"]}
+crrl = {git = "https://github.com/distributed-lab/crrl.git", branch = "feature/fix-mod-int-impl", features = ["modint256"]}
 bytes = "1.10.0"
 
 [dev-dependencies]
diff --git a/bls12-377-fr/src/lib.rs b/bls12-377-fr/src/lib.rs
index cddef9465..e78b13742 100644
--- a/bls12-377-fr/src/lib.rs
+++ b/bls12-377-fr/src/lib.rs
@@ -14,7 +14,6 @@ pub use poseidon2::Poseidon2Bls12337;
 use rand::distributions::{Distribution, Standard};
 use rand::Rng;
 use serde::{Deserialize, Deserializer, Serialize, Serializer};
-use num_traits::ToBytes;
 
 type Scalar = crrl::field::ModInt256<
     725501752471715841u64,
@@ -70,7 +69,7 @@ impl Packable for Bls12_377Fr {}
 
 impl Hash for Bls12_377Fr {
     fn hash<H: Hasher>(&self, state: &mut H) {
-        let mut serialized_bytes = self.value.encode32();
+        let serialized_bytes = self.value.encode32();
         serialized_bytes.hash(state);
     }
 }
@@ -289,8 +288,6 @@ impl TwoAdicField for Bls12_377Fr {
 
 #[cfg(test)]
 mod tests {
-    use std::str::FromStr;
-
     use num_traits::One;
     use p3_field_testing::{test_field, test_two_adic_field};
 
diff --git a/bls12-377-fr/src/poseidon2.rs b/bls12-377-fr/src/poseidon2.rs
index 9c057e91b..813b2099f 100644
--- a/bls12-377-fr/src/poseidon2.rs
+++ b/bls12-377-fr/src/poseidon2.rs
@@ -100,8 +100,6 @@ impl<const WIDTH: usize> ExternalLayer<Bls12_377Fr, WIDTH, BLS12_337_S_BOX_DEGRE
 
 #[cfg(test)]
 mod tests {
-    use std::str::FromStr;
-
     use lazy_static::lazy_static;
     use p3_poseidon2::ExternalLayerConstants;
     use p3_symmetric::Permutation;